If the chordae tendineae in the right side of the heart were damaged, it might cause blood to leak into the:

Correct Answer: C

Rationale: Damage to the chordae tendineae on the right side would cause backflow into the right atrium during contraction.

Correct Answer: C

Rationale: Teaching for a patient with heart failure includes information about the need to weigh daily and notify the health care provider about an increase of 3 lb in 2 days or 3 to 5 lb in a week. Nitroglycerin patches are used primarily to reduce preload (not to prevent chest pain) in patients with heart failure and should be used daily, not on an 'as needed' basis. Diuretics should be taken earlier in the day to avoid nocturia and sleep disturbance. The patient should call the clinic if increased orthopnea develops rather than just compensating by further elevating the head of the bed.

Correct Answer: D

Rationale: Atherosclerosis is a disease of the arteries characterised by the deposition of fatty material on their inner walls that can lead to a heart attack, restrict blood flow to the heart muscle, and lead to coronary heart disease.

Correct Answer: D

Rationale: The great saphenous vein is commonly harvested for coronary artery bypass grafting due to its length and accessibility.

Correct Answer: A

Rationale: Lead aVL uses the left arm as the positive electrode, with the right arm and left leg as reference.